Video-guided 1-2 hour exercise to get hands-on familiarity with Jujutsu version control, starting from nothing.

I've used Jujutsu for a week or so. It's fantastic. I was going to write an introduction to Jujutsu article but this one is so much better than what I had planned. Read this one instead.
I do wish it had a better name. Try looking up "Jujutsu conflict resolution" and you get a bunch of stuff about martial arts.